Question Is my psu enough?

That power supply should be replaced (with something much better) and thrown in the trash (or recycled) as soon as possible.

It has 18A on the +12V rail, equaling 216W. It claims it is a 450W power supply, which is grossly (and dangerously) misleading.

While a GTX 1050 uses a relatively small amount of power and could possibly run with that power supply, it's definitely not recommended because that power supply is not made for gaming systems.